4 ms·

> Tell the sender it failed... But if the sender is a bad actor, they can just keep testing until they succeed, which will make fraud worse.

• account42 5y ago
  Apparently sometimes the sender is not a bad actor.
  • Zuider 5y ago
    Bad actors are why we can't have nice things. Think of how simple, clean and efficient computing would be if we didn't have to keep criminals and idiots at bay.